Ps 81:3

81:3 new moon. The Bible occasionally mentions a special celebration that took place at the time of the new moon (1 Sam. 20:5, 18; 2 Kin. 4:23; Is. 66:23; Ezek. 46:1, 6; Amos 8:5). Frequently, the New Moon festival is mentioned along with regular Sabbath observance; see also Col. 2:16, 17.